If there are 3 billion letters in the reference genome, how much did it cost per letter to sequence the first human genome?
$0.10
$1.00
$10.00
When sequencing a genome, how do scientists deal with the problem of how big the genome is?
Ignore parts of the genome that are unimportant and only sequence important parts
Break up the genome into smaller pieces and sequence all the pieces at once
Only sequence one of the two strands in a double stranded piece of DNA from a genome
What is one way that scientists deal with the problem of how small the genome is?
Use a microscope to see each letter better
Add enough colored letters to get more than one to stick at a time to the DNA
Make copies of the DNA
Scientists use special colored letters and enzymes to learn what the sequence of a cluster of identical pieces of DNA is. How?
A sequential series of pictures of colored spots are taken and analyzed
All the colored letters added into newly made DNA make a unique hue for each spot
The time before the color fades away is an indication of the sequence of letters
Once we have the sequences for each piece of DNA from a genome, scientists ________.
Make sure all the sequences of every piece are the same and that there are no mutations
Make sure there is the same number of letters in each piece
Put them all together using the first genome sequence as a guide
Next step after DNA has been deciphered will be
To check out if it is correct
To use that knowledge to improve our characteristics
To decipher what the sequence means